Water heating and circulating system



P. J. MOLLOY.

WATER HEATING AND cmcuLATl-NfsvsTEM.

AFPLICATON FILED DEC.28. |920.

Patented Apr. 4, 1922.

2 SHEETS-SHEEI I.

P. J. MOLLOY. WATER HEATING AND CIRCULATING SYSTEM. APPLICATION man n:c.2'8.v|92o. 1,41 1,291 Patented Apr. 4, 1922.

2 SHEETS-SHEET 2.

:RIMIIIIHIIII I| 'l III IMI HIIIIIIIII lI I III I In/vanto@ PWR/CK J mmvmmkkammg PATRICK J. Monroy, or NEW Yoan, N. Y.

WATER HEATIG AND GIRCULATING SYSTEM.

specification of Letters4 Patent.

Application filed December 28,1920. Serial No. 433,579.

To all whom t may concern: I

Be it known that I, PATRICK J. MoLLoY, a citizen of the United States,residing at New York, in the county of Bronx and State of New York, haveinvented certain new and useful Improvements in Water Heating andCirculating Systems,of which the following is a specification.

This invention relates to water heating and regulating systems, and itcomprises a water heater, a vertical lead pipe connected to said heater,said lea-d pipe being provided with a pair of branches connected to theheater, equalizing return pipes arranged between said branches, andmeans for automatically controlling the pressure in said system. l

-In the present invention, I have provided a water heating andregulating system wherein a single vertical lead pipe is employed, butin which -all the practical advantages of a two-pipe system areobtained.

In the present invention, I employ a water heater of any suitable typeconnected to the main source, and provided with means 'for automaticallyadmitting water into the system until a certain predetermined pressureis reached. The heater is provided with an outlet pipe arranged near thetop, whereby hot water will be taken from the boiler, and this outlet isconnected to the lower part of the vertical pipe or other supply pipedelivering the heated water to the different floors of the building, orother places where it is to be used. The cold water returns through thesame pipe to a point near the heater, where it enters a return branchpipe communicating with the heater in the lower portion thereof. Meansare provided for automatically maintaining the pressure in the system ata predetermined point and discharging a portion of the water from thesystem when the pressure exceeds a predetermined limit.

In'the accompanying drawings, I have shown one embodiment of myinvention, In this showing:

Figure 1 is a side elevation showing the invention applied, and,

Figure 2 is a detail view showing the heater in section.

Referring to the drawings,gthe reference l numeral 1 designates a tankor receptacle employed as a heater. This tank may be provided with asteam coil 2 for heating pur# poses, the steam being delivered to thecoil through pipe 3, provided with a' control valve 4, and returnedthrough pipe 5, the pipes 3 and 5 being connected to theends of thecoil` in any suitable manner. The heater is further provided with apressure gauge 6.

Water to be heated is admitted to the heater froma source of supplythrough a pipe 7, provided with a hand valve 8. A check valve `9'isarranged in 'this pipe lto prevent the heated water from flowingoutwardly and returning to the system. Thepipe 7 communicates with avertical pipe 10, arranged at the bottom of the boiler and provided witha sediment trap 11. The sediment trap is provided with a valved drainpipe 12.

The heater is provided with a hot water outlet 13, communicating withthe main pipe 14 of the system by means of an inclined branch pipe 15.The lower end of the main pipe is provided with a return branch pipe 16,connected to the heater at a point below the outlet branch 13. Anequalizing return branch 17 is arranged between the pipes- 13 and 16.The pipe 13 is connected to a sub-y stantially vertical pipe 18, and thepipe 17 is also connected thereto by a branch 19. A second pipe 2O isarranged substantially parallel tothe pipe 18, and these two pipes areconnected' by fittings 21, forming a` substantially inverted U-shapedmember. The pipe 18 is provided with a valved outlet 22, and a safetyvalve 23 is arranged between thev pipes 18 and 20. The lower end of thepipe 20 is open and is adapted to discharge into a sink 24 when thesafety valve is open. A plurality of spaced batlie plates 25 arearranged .over the end of pipe 2O to mulile the i sound caused bydischarge of hot water or hot water and steam when the safety valve isoperated. The main vertical pipe 14 is provided with a plurality ofbranches 26 communicatingy with offsets 27 arranged within sinks 28.

The invention may be used for heating water for any purpose. In theaccompanying drawings, I have shown the invention y Patented Apr4, 1922.

used for heating water for'washing, and

have shown three outlet branches arranged on different floors of abuilding, one above the other. It is, of course, to be understood thatany number of outlets may be used,ac

cording to the necessities of the particular installation, and4 thatthey may be arranged on different parts of the same floor and connectedto the main pipe 14 by suitable horizontal branches.

It is to be understood that the form of my invention herewith shown and'described is to be taken as a preferred example of the same, and thatvarious changes in the shape, size, and arrangement ofparts mayberesorted to Without departing from the spirit of the invention or thescope of the subjoinedl claims.

`Having thus claim: i

l. A water heating` and circulating system, comprising a heater, a mainpipe, an outlet pipe connected to the heater at a point near the top,Aand being'connected to said main pipe,ja return pipe connected to saidmain pipe and to saidheater, said outlet pipe extending beyond said mainpipe connection, a, U-shaped. pipe connected to the end of saiddescribed my invention, I

outlet pipe, and a safety valve arranged in said U-shaped pipe. Y

2. A Water heating and circulating system, comprising a heater, a mainpipe, an outlet ppeconnected" to the heater at a point near the top andbeing conected to said main pipe, avreturn pipe connected to saidvmainpipe and to said heater, said outlet pipe extending beyond said mainpipe connection, a Ufshaped pipe yhaving one arm connected to the end ofsaid outlet pipe, the other arm of said pipe being open, a safety valvearranged between sai-d arins, and va muffler comprising a plurality ofspaced plates surrounding the open lend of said U-shaped l PATRICK` J.MOLLOY.

lVtnesses f.

THOMAS ODONNELL, WILLIAM WOHLGEMUTH.

